Letters to the Editor or posted online?
You really think that major corporations would listen to any message from these sources?
Any warning prior to the event…... ignored as either coming from a crackpot…...
or summarily dismissed as any hypothetical tips to prevent any major terrorist event would be too costly for the airliners to enact.
…...so I can go back in time and prevent you dale old man.
As for your ideas; though noble, they are essentially a bunch of cockamamie garbage.